Add FileManager::getNoncachedStatValue, which will resolve relative paths against the working directory specified in the file system options.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127893 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 13 insertions, 0 deletions

diff --git a/include/clang/Basic/FileManager.h b/include/clang/Basic/FileManager.h
index 40f6d86563..465f856f94 100644
--- a/include/clang/Basic/FileManager.h
+++ b/include/clang/Basic/FileManager.h
@@ -195,6 +195,11 @@ public:
   llvm::MemoryBuffer *getBufferForFile(llvm::StringRef Filename,
                                        std::string *ErrorStr = 0);
 
+  // getNoncachedStatValue - Will get the 'stat' information for the given path.
+  // If the path is relative, it will be resolved against the WorkingDir of the
+  // FileManager's FileSystemOptions.
+  bool getNoncachedStatValue(llvm::StringRef Path, struct stat &StatBuf);
+
   /// \brief If path is not absolute and FileSystemOptions set the working
   /// directory, the path is modified to be relative to the given
   /// working directory.
diff --git a/lib/Basic/FileManager.cpp b/lib/Basic/FileManager.cpp
index 1a8b01938e..4e5a129082 100644
--- a/lib/Basic/FileManager.cpp
+++ b/lib/Basic/FileManager.cpp
@@ -541,6 +541,14 @@ bool FileManager::getStatValue(const char *Path, struct stat &StatBuf,
                                   StatCache.get());
 }
 
+bool FileManager::getNoncachedStatValue(llvm::StringRef Path, 
+                                        struct stat &StatBuf) {
+  llvm::SmallString<128> FilePath(Path);
+  FixupRelativePath(FilePath);
+
+  return ::stat(FilePath.c_str(), &StatBuf) != 0;
+}
+
 void FileManager::GetUniqueIDMapping(
                    llvm::SmallVectorImpl<const FileEntry *> &UIDToFiles) const {
   UIDToFiles.clear();